Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in Portland, ME.
Next low tide (tomorrow) : 6:29 am (0.2 ft)
Next high tide (tomorrow) : in 37m at 12:06 am (9.8 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 5:27 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Apr 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:389.94:328.510:100.010:251.35:236:06Third Quarter1Sat
2Sun4:449.35:408.211:180.511:341.75:216:08Third Quarter2Sun
3Mon5:549.06:488.112:280.75:196:09Third Quarter3Mon
4Tue7:028.97:498.312:461.71:340.85:176:10Waning Crescent4Tue
5Wed8:039.08:418.61:501.52:280.75:166:11Waning Crescent5Wed
6Thu8:559.19:258.92:441.23:140.65:146:12Waning Crescent6Thu
7Fri9:399.210:049.13:300.83:530.55:126:13Waning Crescent7Fri
8Sat10:209.210:399.44:110.64:280.55:106:15New Moon8Sat
9Sun10:589.211:119.54:480.45:000.65:096:16New Moon9Sun
10Mon11:349.111:429.65:220.25:310.75:076:17New Moon10Mon
11Tue12:089.05:560.26:010.95:056:18New Moon11Tue
12Wed12:129.612:428.76:290.26:341.15:036:19Waxing Crescent12Wed
13Thu12:439.51:188.57:040.37:081.35:026:21Waxing Crescent13Thu
14Fri1:179.41:568.27:420.47:471.55:006:22Waxing Crescent14Fri
15Sat1:569.22:418.08:250.68:321.74:586:23Waxing Crescent15Sat
16Sun2:429.13:327.89:150.89:231.84:576:24First Quarter16Sun
17Mon3:369.04:297.810:100.910:211.84:556:25First Quarter17Mon
18Tue4:379.05:308.011:100.811:241.64:536:27First Quarter18Tue
19Wed5:429.26:338.512:120.64:526:28Waxing Gibbous19Wed
20Thu6:489.57:329.112:311.21:130.24:506:29Waxing Gibbous20Thu
21Fri7:519.98:259.91:350.52:09-0.34:486:30Waxing Gibbous21Fri
22Sat8:4810.39:1510.72:34-0.33:00-0.74:476:31Waxing Gibbous22Sat
23Sun9:4310.610:0411.33:28-1.03:49-0.94:456:33Full Moon23Sun
24Mon10:3610.710:5211.64:21-1.64:38-1.04:446:34Full Moon24Mon
25Tue11:2810.711:4111.75:13-1.95:27-0.84:426:35Full Moon25Tue
26Wed12:2110.46:04-1.96:16-0.54:416:36Waning Gibbous26Wed
27Thu12:3011.51:1310.06:56-1.67:070.04:396:37Waning Gibbous27Thu
28Fri1:2111.02:099.47:50-1.18:010.64:386:38Waning Gibbous28Fri
29Sat2:1610.43:098.98:47-0.59:001.14:366:40Third Quarter29Sat
30Sun4:169.85:118.510:490.111:041.55:357:41Third Quarter30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8418150)

Common Questions About Portland, ME Tides

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What time does the tide turn (slack tide) in Portland, ME today?

Slack tide in Portland, ME is approximately 3:17 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Portland, ME?

Portland, ME is currently in a spring phase. Tonight's moon is 100% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Portland, ME tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Portland, ME?

Tide predictions for Portland, ME come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Portland, ME?

Tide data for Portland, ME is sourced from NOAA Station #8418150. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8418150.

What is the moon phase in Portland, ME tonight?

Tonight the moon over Portland, ME is Full Moon (100% illuminated). This places Portland, ME in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA